Former National Party Prime Minister Jim Bolger is putting ACT's chances of getting referendum on the Treaty of Waitangi at zero.
 ACT has staunchly lobbied for a constitutional rewrite - calling for the treaty principles be redefined and put to the public.
Leader David Seymour is "optimistic" he can persuade National to agree during the talks to form a new government - others say his chances are nil.
Political reporter Anneke Smith has more.